# Miniature Circuit Breaker HiSmart NV821648 4-pole 50 A

**URL:** https://aio.lv/en/product--hismart-nv821648--10840453
**Data updated:** 2025-12-30 12:45 (EET)
**Category:** Power Sockets
**Manufacturer:** HiSmart
**Manufacturer code:** NV821648
**EAN:** 6942034316174
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 21.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv821648--10840453

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Miniature Circuit Breaker HiSmart NV821648 is a 4-pole protective device rated for 50 A. Designed for switching and overcurrent protection in three-phase and multi-pole circuits, it provides reliable circuit isolation and fault interruption. Suitable for residential, commercial, and light industrial distribution boards where compact multi-pole protection is required.

## Long description

Miniature Circuit Breaker HiSmart NV821648 is a 4-pole protective device rated at 50 A, designed for switching and overcurrent protection in three-phase and multi-pole circuits. It provides reliable circuit isolation and fault interruption for residential, commercial and light industrial distribution boards where compact multi-pole protection is required.
Advantages
The MCB offers overload and short-circuit protection with a Class C tripping characteristic and a rated breaking capacity of 6 kA. It includes an anti-mistake contact terminal block, flame-retardant and high-temperature resistant housing, impact-resistant construction, and a visual contact position indicator (red = closed, green = open). The device supports top and bottom connections and can accept cable or pin-type busbar conductors up to 25 mm².
Suitable for
Three-phase and multi-pole residential distribution boards
Commercial electrical panels requiring 4-pole protection
Light industrial installations with compact DIN-rail mounting
Key specifications
Poles: 4
Rated current (In): 50 A
Tripping class: C
Rated voltage (Ue): AC 400 V
Insulation voltage (Ui): 500 V
Rated frequency: 50/60 Hz
Rated breaking capacity (Icu): 6000 A
Rated impulse withstand voltage (Uimp): 6000 V
Mechanical life: 20,000 operations
Electrical life: 8,000 operations
Safety class: IP20
Terminal connection type: cable / pin-type busbar
Wire/busbar cross-sectional area: up to 25 mm² / 18-3 AWG
Connection: top and bottom
Installation: DIN-rail EN 60715 (35 mm) with fast clip
Operating temperature: -5°C to +40°C (daily average \<35°C)
Storage temperature: -25°C to +70°C
Dimensions: 85.5 x 78.8 x 71.5 mm
Standards: IEC 60898-1 / EN 60898-1
Manufacturer: HiSmart, MPN NV821648, EAN 6942034316174
How to use
Mount the MCB on a 35 mm DIN rail (EN 60715) using the fast clip device. Connect incoming and outgoing conductors to the top and bottom terminals, ensuring proper conductor size (up to 25 mm² for cables or compatible pin-type busbar). Verify correct tightening of terminals and that the contact position indicator shows the expected state. Use for switching and overcurrent protection in three-phase and multi-pole circuits, observing local wiring regulations and safety practices.
Usage recommendations
Ensure the selected MCB class and rated current (50 A, Class C) suit the load characteristics; coordinate with upstream and downstream protection and verify installation meets IEC/EN 60898-1. Perform commissioning checks and periodic testing in accordance with applicable electrical standards.

## FAQ

### How much does the Miniature Circuit Breaker HiSmart NV821648 4P 50A cost, and is it available for purchase?

The price is 26.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 20.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HiSmart products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HiSmart service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10840453/60188100_large.webp